Nedeljko families are Croats and they are mostly from Mursko Sredisce area. In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and in Mursko Sredisce area.
Prevalence
About 130 people with faimily name Nedeljko live in Croatia today, in 40 households. There were 40 of them in the middle of the past century, and their number tripled. They are located in 8 Croatian counties, in 7 cities and 21 other places, mostly in Cakovec (20), Mursko Sredisce (20), Miklavec in Mursko Sredisce area (10), Kristanovec (10), and in Sesvete (<10).
Outside Croatia
Family name Nedeljko is present in 9 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.